The BR25Hxxx-WC series is a serial EEPROM with a SPI BUS interface method.
The ROHM BR25Hxxx-WC series are automotive‑grade serial EEPROMs with SPI bus interface, available in capacities from 1 Kbit to 32 Kbit. They operate from 2.5 V to 5.5 V, support high‑speed clock up to 5 MHz, and include features such as write‑protect, hold function, and auto‑erase.
The datasheet provides absolute maximum ratings, memory cell characteristics, electrical parameters, pin configurations, and recommended mounting precautions. Typical performance curves illustrate voltage thresholds, timing, and current consumption for read, write, and standby modes.
| Operating temperature range | -40 °C to +125 °C |
|---|---|
| Storage temperature range | -65 °C to +150 °C |
| Write current (6 V) | 1.5 mA (Typ.) |
| Standby current (5 V) | 0.1 µA (Typ.) |
| Data rewrite endurance | 1,000,000 times |
| Data retention | 40 years |
The devices operate from –40 °C to +125 °C.
The memory can be rewritten up to 1,000,000 times.
Standby current is typically 0.1 µA at 5 V.